1/*
2 * Copyright (C) 2013 Google Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "HTMLResourcePreloader.h"
28
29#include "CachedResourceLoader.h"
30#include "CrossOriginAccessControl.h"
31#include "Document.h"
32
33#include "MediaQueryEvaluator.h"
34#include "RenderView.h"
35
36namespace WebCore {
37
38URL PreloadRequest::completeURL(Document& document)
39{
40 return document.completeURL(m_resourceURL, m_baseURL.isEmpty() ? document.baseURL() : m_baseURL);
41}
42
43CachedResourceRequest PreloadRequest::resourceRequest(Document& document)
44{
45 ASSERT(isMainThread());
46
47 bool skipContentSecurityPolicyCheck = false;
48 if (m_resourceType == CachedResource::Type::Script)
49 skipContentSecurityPolicyCheck = document.contentSecurityPolicy()->allowScriptWithNonce(m_nonceAttribute);
50 else if (m_resourceType == CachedResource::Type::CSSStyleSheet)
51 skipContentSecurityPolicyCheck = document.contentSecurityPolicy()->allowStyleWithNonce(m_nonceAttribute);
52
53 ResourceLoaderOptions options = CachedResourceLoader::defaultCachedResourceOptions();
54 if (skipContentSecurityPolicyCheck)
55 options.contentSecurityPolicyImposition = ContentSecurityPolicyImposition::SkipPolicyCheck;
56
57 String crossOriginMode = m_crossOriginMode;
58 if (m_moduleScript == ModuleScript::Yes) {
59 if (crossOriginMode.isNull())
60 crossOriginMode = "omit"_s;
61 }
62 auto request = createPotentialAccessControlRequest(completeURL(document), document, crossOriginMode, WTFMove(options));
63 request.setInitiator(m_initiator);
64 return request;
65}
66
67void HTMLResourcePreloader::preload(PreloadRequestStream requests)
68{
69 for (auto& request : requests)
70 preload(WTFMove(request));
71}
72
73void HTMLResourcePreloader::preload(std::unique_ptr<PreloadRequest> preload)
74{
75 ASSERT(m_document.frame());
76 ASSERT(m_document.renderView());
77 if (!preload->media().isEmpty() && !MediaQueryEvaluator::mediaAttributeMatches(m_document, preload->media()))
78 return;
79
80 m_document.cachedResourceLoader().preload(preload->resourceType(), preload->resourceRequest(m_document));
81}
82
83
84}
85